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Hypoglossal Nerve

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https://www.readbyqxmd.com/read/29456769/a-case-of-schwannoma-of-the-submandibular-region
#1
Babatunde O Bamgbose, Akiko Sato, Yoshinobu Yanagi, Miki Hisatomi, Yohei Takeshita, Irfan Sugianto, Junichi Asaumi
Background: We herein described a rare case of schwannoma of the hypoglossal nerve in the submandibular region with diagnostic imaging and histopathological findings. Case Report: A 31-years-old woman has had a palpable firm, rubbery, freely mobile mass in the submandibular region. Of imaging, MR images showed homogeneous isointensity on T1-weighted imaging (T1-WI), heterogeneous hypointensity on T2-WI, heterogeneous hyperintensity on short T1 inversion recovery (STIR), and heterogeneous enhancement on contrast-enhanced T1-WI...
2018: Open Dentistry Journal
https://www.readbyqxmd.com/read/29455904/hypoglossal-nerve-paralysis-in-a-child-after-a-dental-procedure
#2
Simona D Marino, Laura Schiavone, Flavia M C La Mendola, Tiziana Timpanaro, Maria Elena Cucuzza, Filippo Greco, Pierluigi Smilari, Agata Fiumara, Andrea Domenico Praticò
Unilateral palsy of the hypoglossal nerve is a rare complication of orthodontic procedures. The main reported causes of HNP are: orthopedic and otorhinolaryngology surgical interventions, and in particular maneuvers involving compression or overstretching of the hypoglossal nerve, dental procedures and traumas, and also infections, motoneuron disorders, tumors, vascular diseases. Diagnosis is usually performed by electrophysiology studies (EMG-VCN), and brain magnetic resonance imaging (MRI) is useful to exclude other causes...
February 6, 2018: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/29452877/the-split-hypoglossal-nerve-versus-the-cross-face-nerve-graft-to-supply-the-free-functional-muscle-transfer-for-facial-reanimation-a-comparative-study
#3
Tarek A Amer, Mohamed S El Kholy
Long-standing cases of facial paralysis are currently treated with free functional muscle transfer. Several nerves are mentioned in the literature to supply the free muscle transfer. The aim of this study is to compare the split hypoglossal nerve and the cross-face nerve graft to supply the free functional muscle transfer in facial reanimation. Of 94 patients with long-standing, unilateral facial palsy, 49 were treated using the latissimus dorsi muscle supplied by the split hypoglossal nerve, and 45 patients were treated using the latissmus dorsi muscle supplied by healthy contralateral buccal branch of the facial nerve...
January 31, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29452069/idiopathic-isolated-unilateral-hypoglossal-nerve-palsy-a-report-of-2-cases-and-review-of-the-literature
#4
Akio Shibata, Masashi Kimura, Kenichiro Ishiabashi, Masahiro Umemura
Hypoglossal nerve palsy (HNP) is a common finding in neurologic diseases when associated with other cranial nerve palsies or further pathology and exhibits characteristic clinical manifestations, including unilateral atrophy of the musculature of the tongue. It occasionally appears as the initial or solitary sign of an intracranial or extracranial space-occupying lesion, head or neck injury, or vascular abnormality of the internal carotid artery. There are few cases of idiopathic isolated unilateral HNP, which should be diagnosed through exclusion...
February 2, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29438855/true-aneurysm-of-the-proximal-occipital-artery-case-report
#5
Giulio Illuminati, Marco Cannistrà, Giulia Pizzardi, Rocco Pasqua, Francesca Frezzotti, Francesco G Calio'
INTRODUCTION: True aneurysms of the proximal occipital artery are rare, may cause neurological symptoms due to compression of the hypoglossal nerve and their resection may be technically demanding. PRESENTATION OF CASE: The case of an aneurysm of the proximal occipital artery causing discomfort and tongue deviation by compression on the hypoglossal nerve is reported. Postoperative course after resection was followed by complete regression of symptoms. CONCLUSION: Surgical resection, as standard treatment of aneurysms of the occipital artery, with the eventual technical adjunct of intubation by the nose is effective in durably relieving symptoms and preventing aneurysm-related complication...
February 9, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29414420/expression-of-the-transcription-factor-foxp2-in-brainstem-respiratory-circuits-of-adult-rat-is-restricted-to-upper-airway-pre-motor-areas
#6
Davor Stanić, Rishi R Dhingra, Mathias Dutschmann
Expression of the transcription factor FOXP2 is linked to brain circuits that control motor function and speech. Investigation of FOXP2 protein expression in respiratory areas of the ponto-medullary brainstem of adult rat revealed distinct rostro-caudal expression gradients. A high density of FOXP2 immunoreactive nuclei was observed within the rostral pontine Kölliker-Fuse nucleus, compared to low densities in caudal pontine and rostral medullary respiratory nuclei, including the: (i) noradrenergic A5 and parafacial respiratory groups; (ii) Bötzinger and pre-Bötzinger complex and; (iii) rostral ventral respiratory group...
January 31, 2018: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29410358/hypoglossal-nerve-stimulation-in-a-pre-clinical-anesthetized-rabbit-model-relevant-to-osa
#7
Girriso F Benderro, Jenniffer Gamble, Matthew A Schiefer, Jonathan Z Baskin, Yeritza Hernandez, Kingman P Strohl
We tested the functional effects of hypoglossal (CNXII) stimulation in the anesthetized rabbit before and after injections of saline into the tongue base to obstruct the airway. Data (n = 6) show little or no effect of CN XII trunk stimulation; however, medial branch stimulation (20-100 Hz; 50-500 μs pulse width, and incremental increases from 10 μA) reduced upper airway resistance. Medial branch stimulation was less effective in reducing resistance than anterior advancement of the hyoid. Endoscopic viewing (n-3) of the retropalate showed this region as the narrowest and dynamically changed by anterior hyoid displacement, with less evident effects than CNXII stimulation...
February 1, 2018: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29410339/comparison-of-four-different-methods-for-direct-hypoglossal-facial-nerve-anastomosis-in-rats
#8
Pengfei Liu, Chenlong Liao, Wenxiang Zhong, Min Yang, Pengyang Li, Wenchuan Zhang
BACKGROUND: Classic hypoglossal-facial nerve anastomosis inevitably causes hemitongue atrophy and dysfunction. Thus, many variants have been developed to reduce tongue-related morbidities. A comparative study concerning these techniques was conducted in rats to systematically evaluate long-term functional and histological outcomes of the recipient and donor systems. METHODS: Rats (8 per group) were treated by end-to-end neurorrhaphy (EEN), EEN using the hemi-sectioned and longitudinally splitted donor nerve (EEN-Hemi), and end-to-side neurorrhaphy through a perineurial window (ESN-PW) or 30-40% partial neurotomy (ESN-PN)...
February 1, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29401065/cervical-vestibular-evoked-myogenic-potential-in-hypoglossal-nerve-schwannoma-a-case-report
#9
Aravind Kumar Rajasekaran, Amey Rajan Savardekar, Nagaraja Rao Shivashankar
BACKGROUND: Schwannoma of the hypoglossal nerve is rare. This case report documents an atypical abnormality of the cervical vestibular evoked myogenic potential (cVEMP) in a patient with schwannoma of the hypoglossal nerve. The observed abnormality was attributed to the proximity of the hypoglossal nerve to the spinal accessory nerve in the medullary cistern and base of the skull. PURPOSE: To report cVEMP abnormality in a patient with hypoglossal nerve schwannoma and provide an anatomical correlation for this abnormality...
February 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/29401056/cervical-vestibular-evoked-myogenic-potentials-and-hypoglossal-nerve-schwannoma
#10
EDITORIAL
Devin L McCaslin
No abstract text is available yet for this article.
February 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/29399751/revisiting-the-relationship-between-the-submandibular-duct-lingual-nerve-and-hypoglossal-nerve
#11
Ceren Günenç Beşer, Burcu Erçakmak, Hasan Barış Ilgaz, Alper Vatansever, Mustafa Fevzi Sargon
BACKGROUND: The aim of the study was to evaluate the relations between submandibular duct, lingual nerve and hypoglossal nerve for making a reassessment of this area in fresh frozen specimens. Also, the distance between the angle of the mandible and the vertical line drawn from the point where submandibular duct crossed lingual nerve to the base of the mandible was measured to determine a new landmark for neck surgeons. METHODS: 14 fresh frozen head and neck specimens were dissected and evaluated...
February 5, 2018: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29387300/surgical-anatomy-of-the-cervical-part-of-the-hypoglossal-nerve
#12
Brian Ngure Kariuki, Fawzia Butt, Pamela Mandela, Paul Odula
Iatrogenic injuries to cranial nerves, half of which affect the hypoglossal nerve, occur in up to 20% of surgical procedures involving the neck. The risk of injury could be minimized by in-depth knowledge of its positional and relational anatomy. Forty-one hypoglossal nerves were dissected from cadaveric specimens and positions described in relation to the internal carotid artery (ICA), external carotid artery (ECA), carotid bifurcation, mandible, hyoid bone, mastoid process, and the digastric tendon. The distance of the nerve from where it crossed the ICA and ECA to the carotid bifurcation was 29...
March 2018: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29381638/unilateral-isolated-hypoglossal-nerve-palsy-caused-by-gunshot-injury
#13
Bulent Ozdemir, Ayhan Kanat, Sule Batcik, Osman Ersagun Batcik, Metin Celiker, Kamil Kayayurt
Cranial nerve palsies after gunshot injury are not uncommon. However, in the literature, only 1 patient with isolated hypoglossal nerve paralysis caused by gunshot has been published. The authors describe a 34-year-old man suffering from unilateral isolated hypoglossal nerve palsy caused by gunshot injury as a second reported patient. The bullet entered maxillary sinus, and caused condylar fracture, then ended up C1-2 interspace. The bullet was surgically removed by a posterior approach. It is important to pay attention to hypoglossal nerve injury when confronted with a gunshot wound...
January 19, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29357492/involvement-of-hypoglossal-and-recurrent-laryngeal-nerves-on-swallowing-pressure
#14
Takanori Tsujimura, Taku Suzuki, Midori Yoshihara, Shogo Sakai, Naomi Koshi, Hirokazu Ashiga, Naru Shiraishi, Kojun Tsuji, Jin Magara, Makoto Inoue
Swallowing pressure generation is important to ensure safe transport of an ingested bolus without aspiration or leaving residue in the pharynx. To clarify the mechanism, we measured swallowing pressure at the oropharynx (OP), upper esophageal sphincter (UES), and cervical esophagus (CE) using a specially designed manometric catheter in anesthetized rats. A swallow-evoked by punctate mechanical stimulation to the larynx-was identified by recording activation of the suprahyoid and thyrohyoid muscles using electromyography (EMG)...
January 4, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29354589/collet-sicard-syndrome-with-hypoglossal-nerve-schwannoma-a-case-report
#15
Seung Hun Lee, Eun Shin Lee, Chul Ho Yoon, Heesuk Shin, Chang Han Lee
Collet-Sicard syndrome is a rare syndrome that involves paralysis of 9th to 12th cranial nerves. We report an uncommon case of schwannoma of the hypoglossal nerve in a 39-year-old woman presented with slurred speech, hoarse voice, and swallowing difficulty. Physical examination revealed decreased gag reflex on the right side, decreased laryngeal elevation, tongue deviation to the right side, and weakness of right trapezius muscle. MRI revealed a mass lesion in the right parapharyngeal space below the jugular foramen...
December 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29344066/diagnostic-challenge-sequential-unilateral-cranial-neuropathies-due-to-perineural-spread-of-carcinoma
#16
Heather E Moss, Peter W MacIntosh, Konstantin V Slavin, John M Collins
An 86-year old man developed sequential dysfunction of trigeminal (V1), facial, abducens, trigeminal (v2), oculomotor, and hypoglossal cranial nerves on the right over 20 months. Magnetic resonance imaging (MRI) showed a lesion in the right cavernous sinus. Although there was clinical suspicion that this was related to perineural spread of an extracranial tumour, a primary lesion was not discovered. Stereotactic biopsies of the intracranial lesion were non-diagnostic, and the patient succumbed to his tumour following a period of rapid growth...
August 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29315828/a-collagen-coated-pga-conduit-for-interpositional-jump-graft-with-end-to-side-neurorrhaphy-for-treating-facial-nerve-paralysis-in-rat
#17
Yosuke Niimi, Hajime Matsumine, Yuichi Takeuchi, Hironobu Osaki, Satoshi Tsunoda, Mariko Miyata, Masayuki Yamato, Hiroyuki Sakurai
PURPOSE: This study investigated the potential of collagen-coated polyglycolic acid (PGA) tube with interpositional jump graft (IPJG) in rat. MATERIALS AND METHODS: A total of 16 Lewis rats were used in this study. Facial nerve paralysis was created by ligating facial nerve trunk with a ligature clip. The rats were divided into 3 groups. Nerve conduit group (n = 6) were treated by IPJG with collagen-coated PGA tubes between the facial nerve trunks and the hypoglossal nerves...
January 8, 2018: Microsurgery
https://www.readbyqxmd.com/read/29298213/electrophysiology-of-cranial-nerve-testing-spinal-accessory-and-hypoglossal-nerves
#18
Amro M Stino, Benn E Smith
Multiple techniques have been developed for the electrodiagnostic evaluation of cranial nerves XI and XII. Each of these carries both benefits and limitations, with more techniques and data being available in the literature for spinal accessory than hypoglossal nerve evaluation. Spinal accessory and hypoglossal neuropathy are relatively uncommon cranial mononeuropathies that may be evaluated in the outpatient electrodiagnostic laboratory setting. A review of available literature using PubMed was conducted regarding electrodiagnostic technique in the evaluation of spinal accessory and hypoglossal nerves searching for both routine nerve conduction studies and repetitive nerve conduction studies...
January 2018: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/29296165/skull-base-and-craniocervical-bone-pneumatisation-two-case-reports-of-differing-presentations-and-a-review-of-the-literature
#19
Olivia Francies, Simon Morley, Tim Beale
We report two patients with increased central skull base and craniocervical junction bone pneumatisation complicated by extra-osseous gas. One patient presented with symptoms of increasing nasal blockage and 'sinus pressure' on a background of extensive nasal polyposis. He was subsequently found to have a history of repeated Valsalva's manoeuvre, the cessation of which resulted in a rapid decrease in the amount of extra-osseous gas on imaging. The second patient presented following a minor head trauma with dysarthria from a hypoglossal nerve palsy and neck pain, with extensive intra- and extra-cranial gas including within the spinal canal (pneumorrhachis)...
November 2017: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/29283938/immediate-hypoglossal-facial-anastomosis-in-patients-with-facial-interruption
#20
Sertac Yetiser
Hypoglossal-facial anastomosis provides excellent motor supply to the mimetic muscles of the face when there is no chance of recovery of the damaged facial nerve. However, to achieve optimal results, the timing of facial nerve surgery based on electrophysiological testing and clinical evaluation requires close follow-up of the patient. Functional results after delayed surgery are not predictable and depend on the number of surviving fibers, type of injury, severity of damage, degree of infiltration of inflammatory cells, and local fibrosis...
December 27, 2017: Journal of Craniofacial Surgery
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